On Wed, 11 Sep 2013 10:11:29 +0200 Francis Moreau <francis.moro@xxxxxxxxx> wrote: > On Wed, Sep 11, 2013 at 9:40 AM, Francis Moreau <francis.moro@xxxxxxxxx> wrote: > [...] > >> > >> I think this patch will help. The last hunk in particular should make the > >> difference. > >> > >> Please let me know if it fixes the problem. > >> > > > > Yes it fixes the problem. > > > > I had to adjust the patch to make it compile by using be64_to_cpu() > > where needed. > > > > Hmm unfortunately the following test case seems broken too, I'm not > sure it's related however: > > # create a ddf array containing loop0 and loop1 > $ cat /proc/mdstat > Personalities : [raid1] > md124 : active raid1 loop0[1] loop1[0] > 84416 blocks super external:/md125/0 [2/2] [UU] > > md125 : inactive loop1[1](S) loop0[0](S) > 65536 blocks super external:ddf > > # stop the array > $ mdadm --stop /dev/md124 > mdadm: stopped /dev/md124 > $ mdadm --stop /dev/md125 > mdadm: stopped /dev/md125 > > # Add only one disk > $ mdadm -I /dev/loop0 > mdadm: container /dev/md/ddf1 now has 1 device > mdadm: /dev/md/array1 assembled with 1 device but not started > > # start the array > $ mdadm -R /dev/md124 Does mdadm -IRs work at this point? If so, it is just a problem with my quick reimplementation of "-R". I've made a note to look at it when I get a chance. NeilBrown > > # looks like it failed > $ cat /proc/mdstat > Personalities : [raid1] > md124 : inactive loop0[0] > 84416 blocks super external:/md125/0 > > md125 : inactive loop0[0](S) > 32768 blocks super external:ddf > > # start mdmon manually with debug trace > $ mdmon /dev/md125 > starting mdmon for md125 > monitor: wake ( ) > no arrays to monitor... exiting > >
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